Finding the Fourth Proportional to 112,912.86, 155,808.50 and 65,181.58

Step by Step Solution

1. Step 1: Write the proportion equation
   112,912.86 : 155,808.50 = 65,181.58 : x
2. Step 2: Convert to fraction form
   112,912.86/155,808.50 = 65,181.58/x
3. Step 3: Cross multiply
   112,912.86x = 155,808.50 × 65,181.58
4. Step 4: Simplify right side
   112,912.86x = 10,155,844,207.43
5. Step 5: Solve for x
   x = 10,155,844,207.43/112,912.86
6. Step 6: Final answer
   x = 89,944.09